
Former police officer Asahina is a light-hearted young man who works for a security company. One day, he is appointed as a bodyguard and teams up with middle-aged Ishimaru. Ishimaru is a former company president who was labeled as coward due to his cautious personality. Despite having differences, they work together to protect their clients and come face-to-face with their past.
4-go Keibi is a Japanese drama of 30,797 characters, with 2,347 unique words and 889 different kanji. Its difficulty rating on Jiten is hard, 3.1 out of 5. The full vocabulary list ranks all 2,347 words by how often they appear, and you can study them on Jiten or download them as an Anki deck.
Here are some of the words that appear most often in this media, as well as a sample of its rarer vocabulary.